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Chain of Infection in the Transportation of Samples and Infectious Substances

Infectious substances packed/packaged

Microorganisms released from damaged packing/packaging

Entry of microorganisms into the exposed host


  • Chain of infection
  • Trigger
  • Blockage or interruption

Damage to the packaging.

Appropriate transmission route Sufficient infectious dose Host susceptibility.

Prevention - immunization Prophylaxis Treatment.

Exposure (opportunity for contact; e.g., through injection, respiratory route, mucous membranes, ingestion).

Cleaning Disinfection Ventilation Protective clothing Trained operators.

Triple packaging.